You only need basic tools and you can use small piece of scrap leather.
They are really lightweight, and they don't get mess up like the real feather one.
Step 1: WHAT YOU NEED
-transparent leather acrylic (I used a acrylic medium, UV and water resistent, that dry really flexible, of a brand "Golden");
-copper or gold dust;
+some decoration that you want (little chains, mini studs, beads...)
Step 2: DRAW THE SHAPE
The top part of the feathers should be large like the crimps.
Step 3: CUT LEATHER ✄
The bottom edges of the feather should not be sharpen because if not the leather get curly: so cut away a small pieces of it (like in the third photo).
Step 4: MAKE CUT
Step 5: PAINT
Paint the feathers how you like. If the leather is already colored with a thick layer of paint you should sand it with fine sand paper.
Apply a really tiny layer of paint or it will come out because the acrylic will lose his flexibility.